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2-tert-Butyl-1,1,3,3-tetramethylguanidine

≥97.0% (GC)

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Synonym(s):
BTMG
Empirical Formula (Hill Notation):
C9H21N3
CAS Number:
Molecular Weight:
171.28
Beilstein/REAXYS Number:
2352408
MDL number:
PubChem Substance ID:
NACRES:
NA.22

Quality Level

assay

≥97.0% (GC)

form

liquid

refractive index

n20/D 1.457

bp

88-89 °C/43 mmHg (lit.)

SMILES string

CN(C)\C(=N/C(C)(C)C)N(C)C

InChI

1S/C9H21N3/c1-9(2,3)10-8(11(4)5)12(6)7/h1-7H3

InChI key

YQHJFPFNGVDEDT-UHFFFAOYSA-N

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This Item
690953241768167398
N,N,N′,N′-Tetramethylguanidine ≥99.0% (GC)

690953

N,N,N′,N′-Tetramethylguanidine

1,1,3,3-Tetramethylguanidine 99%

241768

1,1,3,3-Tetramethylguanidine

tert-Butyl carbamate 98%

167398

tert-Butyl carbamate

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

200

bp

88-89 °C/43 mmHg (lit.)

bp

162-163 °C (lit.)

bp

52-54 °C/11 mmHg (lit.)

bp

-

form

liquid

form

liquid

form

liquid

form

solid

refractive index

n20/D 1.457

refractive index

-

refractive index

n20/D 1.469 (lit.)

refractive index

-

General description

2-tert-Butyl-1,1,3,3-tetramethylguanidine (Barton′s base) is an excellent alternative to traditional inorganic bases for promoting the coupling reaction.

Application

  • Synthesis of dinaphthyl ethers: Barton′s base, which includes 2-tert-Butyl-1,1,3,3-tetramethylguanidine, was utilized to promote SNAr reactions for the synthesis of highly oxygenated dinaphthyl ethers, demonstrating its efficacy as a catalyst in complex organic synthesis processes (Wipf and Lynch, 2003).

Caution

Remark on appearance: Material may form precipitate on storage. The precipitate may easily be separated by filtration.

pictograms

CorrosionExclamation mark

signalword

Danger

Hazard Classifications

Acute Tox. 4 Oral - Skin Corr. 1B

Storage Class

8A - Combustible, corrosive hazardous materials

wgk_germany

WGK 3

flash_point_f

149.0 °F - closed cup

flash_point_c

65.0 °C - closed cup

ppe

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter


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Customers Also Viewed

D.H.R. Barton et al.
Organic Syntheses, 74, 103-103 (1997)
Peter Wipf et al.
Organic letters, 5(7), 1155-1158 (2003-03-28)
[reaction: see text] Electron-rich dinaphthyl ethers were synthesized by S(N)Ar reactions between naphthols and activated fluoronaphthalenes. 2-tert-Butyl-1,1,3,3-tetramethylguanidine (Barton's base) was found to be an excellent, mild alternative to traditional inorganic bases for promoting the coupling reaction.

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